Pendulum-lamp for clocks.



G. R. HANSON.

PENDULUM LAMP FOR CLOCKS.

APPLICATION FILED AUG.19, 1913.

1,106,807. Patented Aug. 11, 1914.

witnesses. Inventor,

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THE NORRIS PETERS CO PHOTG-LITHO. WASHINGTON. D C.

. UNITED STATES PATENT OFFICE.

CHRISTIAN R. HANSON, OF WATERLOO, IOWA.

PENDULUM-LAMP FOR CLOCKS.

T 0 all whom it may concern Be it known that I, CHRISTIAN R. HAN- SON, a citizen of the United States of America, and a resident of Waterloo, Blackhawk county, Iowa, have invented certain new and useful Improvements in Pendulum- Lamps for Clocks, of which the following is a specification.

My invention relates to pendulum-lamps for clocks, and the object of my improvement is to associate an electric lamp with a pendulum, and to supply a lighting current thereto, with means for making and breaking the circuit, and also arranging stationary lamps in a certain relation to the pendulum lamp so as to produce a desired lighting effect in combination. This object I have accomplished by the means which are hereinafter described and claimed, and which are illustrated in the accompanying drawings, in which:

Figure 1 is a front elevation of a clock, its supporting frame, and electric lamps grouped thereabout, the base of the frame being shown in vertical longitudinal section. Fig. 2 is an enlarged detail view of the clock mechanism and pendulum attachments, showing the electrical connections to said pendulum. Fig. 3 is a diagram of the lighting circuit.

Similar numerals of reference denote corresponding parts throughout the several views.

My invention is designed primarily for an advertising clock for jewelers display windows, although it may be used and displayed anywhere else desired.

The clock casing 19 is supported upon a vertical tube 26, whose lower end is passed through and secured to a downwardly troughed base 28. The numerals 20, 21 and 22 denote straight tubular branches radiating from the casing 19 suitably to form together with the vertical tube 26, a Latin cross. However, as far as my invention is concerned, one or more of these branches may be dispensed with or others added, or the same differently arranged as desired. Electric lamps 23, 24 and 25 are detachably secured in sockets on the outer ends of the branches 20, 21 and 22, respectively. Conductors 15, 18, 17, and 16 connect said lamps in series with each other, and in circuit with a battery 35 or a suitable source of electric current by means of bindingposts 31, the conductor 33, binding-post 32,

Specification of Letters Patent.

Application filed August 19, 1913.

Patented Aug. 11, 1914. Serial No. 785,506.

the switch 36 and conductor 34 to said battery 35. By use of the switch 36, the circuit through said lamps may be made or broken, as desired.

Vithin the casing 19 is secured a clock frame 1, containing the usual clock mechanism and including an escapement operatively connected to a pendulum composed of the connected sections 2, 7 and 8. The pendulum section 8 is of tubular form, and carries on its lower end a lamp socket in which is detachably secureo an electric lamp 27. The upper end of the section 8 is secured within a shorter and wider tube 7, whose upper end is plugged with a piece of insulation through which extend the stems of a pair of conducting loops 6, whose upper ends are hung on oppositely-directed pins 53, secured in the lower ends of insulated conducting strips 3 mounted on the insulating section 2 forming the upper end of the pendulum. The insulating section 2 has a medial vertical slot in which is received slidably the end of an operating rod moved by the escapement of said clock. Bindingposts 1- are secured to opposite sides of the conducting strip 3 on the insulating sect-ion and to them are secured the ends of the coiled wire conductors 9 and 10, which lie on opposite sides of the pendulum in the plane of oscillation of said pendulum, and whose other ends are secured to the binding-posts 11 mounted on pieces of insulation 12, secured to the vertical edges of the clock frame 1. Conductors 13 and 14 lead respectively from the binding-posts 11 through the casing 19, tube 26 and hollow base 28 to the binding-posts 31 and 32, respectively. Other conductors 9 and 10 lead from the two loops 6 down through the hollow pendulum sections 7 and 8 to the lamp 27.

Referring to the diagram of Fig. 3, it will be seen that 29 is a switch connecting the binding-posts 30 and 31 whereby the circuit may be made or broken through the lamps 23, 24 and 25, without breaking the circuit through the lamp 27, when it is desired to leave the pendulum lamp alone lighted. Of course, when it is desired to break the circuit through all the lamps the switch 36 alone is used, or it is used when the circuit is broken through the lamp 27, the latter only having been previously lighted.

It will be seen that the light coiled resilient conductors 9 and 10, on opposite sides of the pendulum, and located in the plane of its oscillation, do not affect the oscillation of the pendulum, being equal in their resiliency. The pendulum parts 7 and 8 may have their loops or hooks 6 disengaged from the pins 5 when desired. The conducting strips 3, pins 5 and loops or hooks 6 thus form conducting means between the looped conductors 9 and 10 and the conducting wires within the pendulum parts 7 and 8 leading to the lamp 27.

In practice, it is preferable to have the pendulum lamp 27 of flattened form so that it may not so readily come into contact with the standard 26 or some other part of the apparatus. The method of conducting the electric current into the pendulum lamp 127 may be varied without departing from the principle of my invention, which is to provide a lamp mounted upon and movable with the pendulum as a means of attracting attention, illuminating the lamp dial, or as an advertisement device. It is obvious, also, that instead of the lamp 27, or the lamps 23, 24 or 25, any other kind of electrically operated device may be mounted on the pendulum or in a similar relation to the same without departing from the principle set outherein.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is:

1. In combination, a sectional pendulum comprising upper and lower separably connected sections, the upper section having its lower portion composed of insulation with insulated terminal. conducting pieces secured thereon provided with oppositely-projecting conducting studs, the lower section having its upper end composed of insulation, conducting hooks detachably hung on said studs and having their stems secured through the last-mentioned insulation, an electric lamp forming the pendulum-bob, electric connections leading from the terminals of the lamp to the said conducting hooks, a source of electric current, and conductors between the said source and the terminal conducting pieces on the upper section of the pendulum.

2. In combination, a sectional pendulum comprising upper and lower separably connected sections, the upper section having its lower portion composed of insulation with insulated terminal conducting pieces having studs extending therefrom, the tubular lower section of said pendulum having its upper end plugged with insulation, hooks detachably suspended on said studs and having their stems passed through said insulation, a detachable electric lamp secured to the lower end of the second-mentioned pendulum section, electric conductors between said hooks and the terminals of said lamp, a fixed support, other electric lamps mounted detachably thereon, a source of electric current, and independent circuits from said source or electric power to the said conducting-section, and in series through said last-mentioned electric-lamps.

Signed at Waterloo, Iowa, this 2nd day of August, 1913.

CHRISTIAN R. HANSON. lVitnesses YV. H. BRUNN, Gno. G. KENNEDY.

Copies 01' this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

